Metallic packing.



J. A. SIMON.

METALLIC PACKING.

APPLICATION FILED JUNE 20,1011.

1,020,456, Patented Mar. 19, 1912.

/ uirqfli/ilzwg Z; Inventor JOSEPH A. SIMON, OF MEMPHIS, TENNESSEE.

METALLIC PACKING.

Specification of Letters Intent.

Patented Mar. 19, 1912.

Application filed June 20. 1911. Serial No. 634349.

To all l(]I.O/)t it may ware/'11.: .lle it known that I..1'osnrn A.Stuns. a

citiz n ot the United States. residing at .\leniphis, in the county otShelby and State v o't 'l ennessee. have invented a new and use tulKlctallic Packing. of which the 't'ollowing is a specification.

It is the object of this invention to provide a metallic packing tor thepiston rods" of steam engines, air ptunps and the like. which packingwill engage the piston rod closely, and prevent a leakage about thesame.

A further object of the lliYetttinll is to provide a Series of segmentalrings adapted to inclose the piston rod, to provide a packing adapted toengage with the cylinder structure, and to inter-pose between thepacking: and the rings, a wedge shaped ring,.etl'cctivc at once, tocrowd the packing against the cylinder structure, and to compact thefirst named rings about the rod.

A further object of the invention is to provide novel means forn'iaintaining the packing in place in the wedge shaped ring whichactnates the segmental. rod-inclosing rings.

A. further object of the invention to provide a packing for a pistonrod, which pack inc; Will readily take up wear.

With the foregoing and other objects in View which will appear as thedescription proceeds, the invention resides in .the combinationand'arrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of invention herein disclosed can be made within the scope ofwhat is claimed without: departing from the spirit of the invention.

In the draWings,--Figure '1 shows the invention in longitudinal section;Fig. 2 is a transverse section on the line of Fig. .1 Fig. 3 isafragmented side elevation of one or" the primary rings; and Fig. tis afrag mental edge elevation of one of the second ary rings.

In the accompanying; drawings, the numoral 1 denotes generally, astalling box,

within which tits as usual the ackin 1 7 D gland 2, the latter beingretained in place by a boltand nut structure 3, as is well understood.

Surrounding the. piston rod P, and located within the stutling box I,are primary rings 4, having parallel end walls 5 and 6, the end wall 5of one ring 4: abutting against a ring 1 51 of asbestos or the like, thering 51 abutting against the end of the stutln'g box 1, the end wall 6of the other ring 1 abutting against the eorrespoinling' end wall 7 oianother primary ring 8, the end wall 9 of the other primary ring.tOabutting against a ring 50 ot' asbestos or other suitable material,the ring 50, in its turn abutting against the end wall of the packinggland 2, a ring 52 ot like material being located between the parts 1and 2 to act as a gasket. As denoted by the numeral 11. the adjacent end'alls of the packing rings 4, and of the rings 8 and it), are parallel.and are spaced apart. The outer tat-es ot the primary rings are beveledinwardly. as shown at 12. The peripheriesot the primary ringsda-yond thel'iei'eled faces 19.. are disposed in a common plane, and are parallelto and spaced from,

the inner face ot the stalling box 1, as shown at t l.

The invention fprther includes secondary rings 15 which. in crosssection, are wedgeshaped. the beveled t'aces lt' of the secondary rings15 engaging with the faces t2 of the primary rings. The outer.peripheral walls of the rings 15 arev spat-ml 't'rom the inner face ofthe shitting box 1. as shown at 17.

The. rings 15 are eircumseribed. in their 8-5 faces 17,.by grooves 18.in which are located packing rings '19, adapt(d to engage with thestnt'ting box 1. The rings 1.) are actuated outwardly by helicalcompression springs 20. the inner ends of which are disposed in spacedseats 21, formed in the bases of thegrooves 18. i

It is of course tobev understood that all of the primary and secondaryrings are segmentalv structures/as must be necessary, in"

order that they may expand, and contract about the piston rod 1.sembling the sect ions of the segmental rings, may be 'aried, as may bedesired, For instance, as is shown, the primaryrmgs may be tongue andgrooved together, terminally, as shown at 22, the secondary rings beingtongue and grooved together, terminally as shown at 23; although thesetongue and groove arrangements are not obligatory. 0

The component sections of the primary and secondary rings are spacedapart, as shown at 24, to provide for the expansion and contractionthereof.

Itv will be seen that when the nuts 3 are tightened, the packing gland 2will be thrust into the stufiing box 1, .pressing the The manner ofasing box 1, these springs 20, at the same time hand, and the piston rodupon the other.

I is claimed is:

close the piston rodP closely.-

-Wear incident to the'reciprocation of the -metal, and may be renewed ata trifling- 30 serving to't-hrust the primary rings 4, 8 and 10inwardly, to compress the same and in Owing to the fact that the packingrings 19' are engaged in. the grooves 18, these packing vrings will beheld assembled with the secondary rings 15. Since the adjacent ends ofthe j as indicated at 11, and since the peripheriesof these rings arespaced from theIinncr-face of the stufling box l, and since, moreover,the outer peripheries 17; f the secondary rings 15 are spaced from 'thestufling box 1, any

piston rod P may readily be taken up, with out causing any portions ofthe packing structure to bind, either against each other or against thestufiing box upon the one The primary and secondary rings are preferablyfashioned from Babbitt or like cost. I 4 The constructionof the deviceis such that no alteration in the'doi'm of the cylinder head or of thepacking gland is necessary, the device forming the subject matter ofthis application being adapted for use in connection with all standard,forms of glands. Having thus described the invention, What 1; Thecombination-with a gland, stuit; ing box and a sliding rod, of ringsabutting against the gland and against the end of the stuffing box,ther'i'ngs each being of equal thickness throughout, and being fashionedfrom refractory, heat-insulating material; pentagonal, wedge-shapedprimary rings, the basesofall of the/primary rings being primary ringsare spaced apartof the stufiing box, respectively,

against the primary rings.

disposed toward the' rod, one pair of pri-- mary rings being disposedback to back, and another pair of primary rings being disposed -withtheir backs against the refracr noeaaee tory rings,-Whereby the Wedgefaces of the pairs of rings will bcpositioned opposite each other todefine grooves; hexagonal, wedge-shaped sedondary rings seatedin thegrooves; the secondary rings being equipped with peripheral grooveshaving depressed seats; packings located in the peripheral, grooves ofthe secondary rings; and springs located in the seats, and bearingagainst the packing s, to actuate the 'packing'o-utwardly against thestuffing box. I

Wedge-shaped primary rings, the bases of all of theprnnary rings beingdisposed to-' ward the rod, one pair of prnnary rings being disposedb-ack to backfand another pair of primary rings being disposed withtheir backs toward'the gland and'toward the end whereby the Wedge facesof the pairs of rings will be positioned opposite each other, to definegrooves; hexagonal, wcdge-shaped second aryrings seated in the grooves;and spring means for advancing the secondary rings 3. The combinationwith a gland, a stuffing box, and a sliding rod, of primary,wedge-shaped rings, the bases of all of the rings being disposed toWa-rdthe rod, one pair of primary rings being disposed back to back, andanother pair of primary rings being disposed with their backs tovva'rdthe gland and toward the end of the stuiiing box, respectively, wherebythe wedge faces of the pairs of rings will'be positioned op.- positeeach other, to define grooves; Wedgeshaped secondary rings seated in thegrooves ,and refractory rings interposed betweenihe last named pair ofprimary rings and the gland and the end oglithestufiing box,respectively. 4

In testimony that claim the foregoing as my own, I have hereto aiiixedmy signa ture in the presence of two witnesses;

, Josnrn A. SIMON.

'VVitnesses: i

A. THOMAS,

'Gno. TAYLon.

'2. The combination with gland, a stuifing box, and a sliding rod, ofpentagonal,

